Diplomacy without arms is like music without instruments.

If my soldiers were to begin to think, not one would remain in the ranks.

He who defends everything defends nothing.

A crown is merely a hat that lets the rain in.

It seems to me that man is made to act rather than to know: the principles of things escape our most persevering researches.

The greatest and noblest pleasure which we have in this world is to discover new truths, and the next is to shake off old prejudices.